General[edit]

• American Jewish Joint Distribution Committee Archives
• Biographisches Handbuch der Rabbiner (in German)
• Compact Memory Project at Universitätsbibliothek Frankfurt
• Encyclopedia Judaica (2007) at Encyclopedia.com or Gale (subscription required)
• Encyclopedia of Russian Jewry (in Russian)
• Hebrew Wikipedia
• Historical Jewish Press Collection at the National Library of Israel
• The Jewish Encyclopedia (1906)
• Jewish Encyclopedia of Brockhaus and Efron (1908–1913) (in Russian)
• Jewish History Resource Center at the Hebrew University of Jerusalem
• Library of the Haskala
• YIVO Encyclopedia of Jews in Eastern Europe (2008)

Holocaust studies[edit]

• Arolsen Archives
• U.S. Holocaust Memorial Museum Collection
• Yad Vashem Digital Collections